Continuous sheet mill



Aug; 18, 1931. B KER v 1,819,763-

counnuous SHEET MILL Filed June 23, 1928 s Sheets-Sheet -1 III Til

\ I WMBlecker f W am gmnntov.

.-Aug. al8,' 1931 w. M. BLECKER CONTINUOUS SHEET. MILL Patented Aug. 13,1931 .UNITE D STATES PATENT OFFICE WILLIAM m. nmcxna, or, cannon.onro..a'ssmuon or array-01m run cm 'ro unwann a. Lanemaomor omen, OHIOcomnuous sneer mar.

Application measure as, ices. Serial No. aerate.

The invention relates to the continuous rolling of sheet bars, slabs orlight platesinto sheets of desired gauge, and the object. of theimprovement is to provide an apparatus 5' in which the slabs or the likemay be sheared from a continuous strip, matched or piled into packs andpassed through a series of mills, cooled, pickled, cold rolled, annealedand further cold rolled, all in a single conla tinuous operation.

A. further ob'ect is to'provide means for opening the pa and separatingthe sheets before they enter-the pickling tank, all of the apparatusfrom this oint on being ar- 16 range in tandem where y the sheetsseparated from the pack may be carried in spaced pairs through theapparatus. 7

' A further object is to provide means for withdrawing the separatedsheets at this so point and passing them in tandem through one or morestands of cold rolls and a double continuous annealing furnace in orderto produce one pass cold rolled and annealed sheets.

B passing the sheets entirely through the I mec anism above described,full finished automobile stock canbe produced or the sheets may heremoved before passing through the final cold rolls if pickled andannealed sheets are desired. An embodiment of the invention isillustrfiteg in the accompanying drawings, in w 10 Figures 1, 1a and 1bare a complete plan p 1 through the pack opener 17 The sheets ofsectional view of the rolling apparatus; an

deposited upon the matching table 2. The

slabs are piled or matched into packs of two or more upon this matchingtable and may then be delivered upon a turning table 3 and 5'0 rotated aquarter turn before passing into the Figs.- 2, 2a and 27 are a completevertical,

heating furnace t, in order to provide for cross rolling if desired.

The packs of slabs are carried on the conveyer 5 through the heatingchamber and as they emerge therefrom the scale may be loosened andremoved from the slabs as by the hydraulic nozzle 6 and steam jets 7.

The several slabs or plates in the pack may then be straightened as bythe pack'straight ening device shown generally at 8, after which thepack is carried through a series of four high hot mills shown at 9, thedistance between the stands of rolls being increased successively inorder to compensate for the elongation of the pack as it passes throughtheseveral mills. I

The conveyer 5 is arranged to carry the pack through the several standsof hot mills 9 and then through acooler 10 which may be provided withinlet and outlet pipes 11 and 12 whereby cooling air or inert gas may becirculated through the cooler and over the heated pack to quickly reducethe temperature of the same.

As the cooled pack emerges from the cooler 1t may be carried through apack leveler indicated at 13 and then delivered by the roller conveyor 5onto a chain conveyor 14: which carries the pack through the edgetrimming shears 15.

A shear 16 may be provided beyond the chain conveyor 14 for shearing theforward end of the pack before the same is passed the pack are loosenedfrom each other as they pass throu h this pack opener and are deliveredonto t e roller conveyor 18. I

At this point means may be provided for separating the sheets of the ackso that they may be passed through t e remaining mechanism singly assheets. This mechanism is illustrated conventionally as comprising afluid operated cylinder 19, the plunger 20 of which may be provided withany suitable means, such as the magnet 21 for ripping the top sheet ofthe opened pack an moving the same laterally away from the'pack.

Means, such as a magnet (not shown) may be provided for holding thelower sheet or sheets of the pack against movement while 10.

are

the top sheet is moved by the plunger 20. The apparatus is arran ed intandem from this point through to t e discharge end in order that singlesheets, separated from the pack, may be simultaneously carried in pairsthrough the remaining mechanism.

If it is desired to produce only one pass cold rolled and annealedsheets. a transfer table 22 may be provided just beyond this separatingmechanism in order to carry the separated sheets laterally and placethem uplon the tandem conveyers 23 by means of w ich the single sheetsare passed in spaced pairs through the tandem cold rolls 24 and doublecontinuous annealing furnace 25. One or.more stands of the cold rolls 24may be provided if desired.

Beyond the double continuous annealing furnace may be located hydraulicnozzles 26 and steamjets 27- for loosening and removing scale and thelike from the annealed sheets. The sheets may then be delivered to anysuitable receiving mechanism located beyond these nozzles and jets.

If it is desired to produce pickled and annealed sheets or full'finished automobile stock, the sheets separated by the separatingmechanism above described may then be passed in tandem, upon theparallel conveyers 28, through a double continuous pickling tank 29,washing tank 30, drying furnace 31 and cooler 32. This cooler may be ofthe same construction as illustrated and described at 10, being providedwith the inlet and outlet pipes 33 and 34 for circulating a coolingagent such as inert gas or air over the pickled and annealed sheets.

One or more tandem stands of cold rolls 35 may be located beyond thecooler, after which the sheets pass in spaced pairs through the doublecontinuous annealing furnace 36. Hydraulic nozzles 37 and steam jets 38may be located beyond the annealing furnace to loosen and remove scaleand the like from the annealed sheets.

A transfer table 39 may be provided at this point for removing thesheets if pickled and annealed sheets are desired, which need not becold rolled; and also for cold rolled sheets intended to be galvanizedor otherwise coated. If full finished automobile stock is required, thesheets are passed through one or more stands of tandem cold rolls 40 andthen in tandem through the leveling rolls 41, being discharged from theend of the mechanism by the tandem conveyers 42.

From the above it, will be seen that the light plates or the like may becontinuously passed through the apparatus to produce either cold rolledand annealed sheets, pickled and annealed sheets or full finishedautomobile stock as desired.

By separating the sheets from the pack and carrying the same throu h thetandem mechanism in spaced pairs, it will be seen that the hot rolls andassociated mechanism which rolls the packs need not be slowed down inorder to compensate for the operations upon the single sheets after thepack is opened and separated, thus permitting the entire mechanism to beoperated at full speed.

It is not intended to limit the scope of the invention and the claimstherefor to the use of four high hot mills and four high cold rollsshown in the drawings and described in the specification, to theexclusion of two high or three high mills; the four high mills beingpresented herein to illustrate kinds of mills which may be used forcarrying out the invention.

I claim:

1. Apparatus for the continuous rolli g of sheets from light plates andthe like including a heating furnace, a series of hot mills, means forpassing the material through the furnace and mills in packs, packopening and separating mechanism, a double continuous pickling tank,tandem cold rolls, a double continuous annealing furnace, and means forpassing sheets in spaced pairs through the pickling tank, cold 'rollsand annealing furnace.

2. Apparatus for the continuous rolling of sheets fronrlight plates andthe like including a matching table, a heating furnace a series of hotmills, means for passing the material through the furnace and mills inpacks, pack opening and separating mechanism, a double continuouspickling tank, tandem cold rolls, a double continuous annealing furnace,and means for passing sheets in spaced pairs through the pickling tank,cold rolls and annealing furnace.

3. Apparatus for the continuous rolling of sheets from light plates andthe like including a turning table, a heating furnace, a series of hotmills, means for passing the material through the furnace and mills inpacks, pack opening and separating mechanism, a double continuouspickling tank, tandem cold rolls, a double continuous annealing furnace,and means for passing sheets in spaced pairs through the pickling tank,cold rolls and annealing furnace.

4. Apparatus for the continuous rolling of sheets from light plates andthe like in eluding a matchingtable, a turning table, a heating furnace.a series of hot mills, means for passing the material through thefurnace and mills in, packs, pack opening and separating mechanism,double continuous pickling tank, tandem cold rolls, a double continuousannealing furnace, and means for passing sheets in spaced pairs through.the pickling tank, coldrolls and annealing furnace.

5. Apparatus for the continuous rolling of sheets from light plates andthe like including a shear, a heating furnace, a series of hot mills,means for passing the material mills in peeks, puck opening andsepui'oting through the instance end mills in punks, puck opening andsepuruting inechsnisin, n double continuous pickling tunli, tnndein coldMills, a double continuous unnesling turnece, and menus for pnssinggsheets in spuceol poise through the pickling tonk, colrl rolls endenneoling tui'nnce,

6. Appecetus for the continuous rolling of sheetslh'oin light platesuntil the like in cluding e sheet", n nietching tuhle, o heatingtuunuce, n series of hot mills, nienns for pussin the ninteniol throughthe iu 'nuce ontl ineclienism, e clouhle continuous pickling to,tondleiu cold i'olls, n double continuous enneulinp; iutnoce, enilinc-ens ioi pnssing sheets in spuced pains through the pickling tenh,cold tolls snil unneulinu lui'nece.

Z. Appuiotus for the continuous selling of sheets from light plotes endthe lilieincluiling e hosting turnuce, u series of hot mills, n cooler,menus for pussing materiel through suitl iui'nuce, mills and cooler inpncks, peck opening uni sepsi'uting mechunism, e double continuouspickling tunic, tundeni cold tolls, s, douhle continuous unneolingluinoce, end menus for passing sheets in spuceu pniis through thepickling tools, cold tolls end annealing iuinnce.

E3. ilppunitus toe the continuous end simultuneous, selective rolling ofone puss cold rolled unil consoled sheets nndl pickled cold soiled unclennenlecl sheets from li lit plutes entl the like including o hostingunnnce, u series oil hot nulls, menus for pnssin the nieteiisl throughthe furnace enol mils in peeks, peels opening and sepsi'utingincohenism, e double continuous pickling tonic, tsnucni cold nulls, udouble continuous onnesliug tuenuce, second tendein cold tolls,

, conveying menus for pussing sheets in sucecl pniis continuouslythrough the piciling tunlz, colil eolls, unneslin;g ffutnuce uncl seconl colil rolls, encl moons to? selectively teniotring sntl collectingsheets from the conseeing; moons hetero pussing through the second colcltolls.

9. .lppei'e'tus fill the continuous until simultoneous, selectivetolling of one puss cohl nollecl onel ennesletl sheets and picliletlcolcl rolled sud nnnesieci sheets icons light pistes the like includingo hosting tunnose, n series oi hot mills, means {for pussi'ng theinntei'inl thtouogh the tusnuce untl mills in peclis, opening untilseponutlng inechunisn'i, clouhle continuous pickling tensletn coli'lcells, double continuous consoling fuenece, second toncletn cold tolls,leveling tolls, conveying menus ion pussingg sheets in spnceclcontinuousl though the pickling tenli, cold rolls, onneo inc iucnoce,second coltl tolls, until leveling to ls, one: inesns ioe'selectiuelyeeinosing end collecting sheets teem the conveying moons heione psssingthrough the second cold rolls,

lo. Appointus ion the continuous selling of sheets from light pistes endthe like ineluding as hosting lunnuce, e series of hot mills, menusiioi' puni the mnteniul through the iiuunuce end mills in peeks, poohopening end sepsi-uting mechunism, n double continuous pickling tunli,tendons colcl tolls, u douhle continuous consoling tunnece, menus tonpussing sheets in spu puirs thioh the pickling tunli, cold rolls endenneuling lurnnce, end moons ion impinging fluid-upon the mutei'ieloften it pusws thiough the onneelinu iuinuce.

ll. Appetntus ice the continuous tolling of sheets from light plutes onethe like including u heutingz tui'nece, u wiles of hot mills, menus foepnssing' the motorist through the turnsce mills in packs, peels openingand sepu'cnting meclinnisin, n dlouhle continuous pickling tools,tunilein cold cells, n olouhle continuous consoling fiuenuce, menus forpassing sheets in speccdl peii's through the pickling tunk, cold tollsonu unneeling tun nece, end menus for impinging finial upon the materielniwr it posses through ouch lunnuce.

l2, Appototus for the continuous end siinultsneousi, selective rollingof one puss cold roller uutl unnesleil sheets end piclzleil cold rolledunnenleol sheets from light plot-e end the liite including o niutchinggtshle, e hosting iuunuce, u series of hot mill menus for passing themutet'iol though i; tutnuce nnol mills in soles, pscli opening enolsepuiuting mechanism, at double continuous pickling tunli, tnnoleincolol tolls, e uouhle continuous consoling iucnooe, neeunsl tuntleincold HGlllS, conveying menus guessing; sheets in spuceol peltscontinuously t isough the pickling tunls, cold tolls, unueuling lunnucenull seconcl colcl rolls, nncl uleuns foe selectively tcnioving usecollecting sheets from the conveying ineuns lactose pessing thnough thesecond coldl tolls.

l3. Aippenetus ion the continuous uncl simultnneous, selective sellingof one use colil uolleil end nnneeletl slimts null pic ieil colcli'ollecl noel nnneeledelieets innit lie'ht pistes undthe like includingo thinning teh e, o ing tucuoce, %ll@ oil hot mills, menus pussing theFi'iillQllfitl through the until mills in puclis, pool-x opening endeepeioting niochnuisin, n douhle continuous plitltll tonic, tontleincolol cells, n tlouhlo continuous unnenling luunece, second tuntlein colconvening moons lot positing s spnceil poise continuously thnough lingtook, colu tolls, nnneeliiue v tun secondl colcl tolls, encl moons l'oci a w 6 connect ng until collecting sheets the con toying heiresspenning tliuough the s contl oolil tolls,

Appointee lion the continuous end i. inultnneous, selective tolling oi"one use cold tolled one consoled sheets noel pic (letl colcl lltii userolled and annealed..sheets from light plates and the like includinga'matcliingtablega turningptable, a heatingfurnace, atseriesofi hot;mills, means folt--passing the .mater1al through the furnace andm-illsin packs, pack opening and se'paratingmechanism, a double continuouspickling tank, tandem cold rolls, a. double continuousanneafing-furnacasec- 0nd tandem cold rolls, conveying means for passingsheets in spaced pairs continuously through the pickling tank, coldrolls, annealing furnace and second cold rolls, and means forselectively removing and collecting sheets from the conveying meansbefore passing through the second cold rolls.

15. Apparatus for the continuous and simultaneous, selective rolling ofone pass cold rolled and annealed sheets and pickled cold rolled andannealed sheets from light plates and the like includinga shear, a,heating-furnace, a series of hot mills, means for passing the materialthrough the furnace and mills in packs, pack opening and separatingmechanism, a double continuous pickling tank, tandem cold-rolls, adouble continuous annealing furnace, second tandem cold rolls, conveyingmeans for passing sheets in-spaced pairs continuously through thepickling tank, cold rolls, annealing furnace and second cold rolls, andmeans for selectively removing and collecting sheetsfrom the conveyingmeans be: fore passing throu h the second cold rolls.

16. Apparatus or the continuous rolling of sheets from light plates andthe like including a heating furnace, a series of hot mills, a cooler,means for passing the material through the furnace, mills and cooler inpacks, pack openin and separating mechanism, adouble pickfing tank, adouble washing tank, a double drying furnace, a double cooler,tandemcold rolls, a double annealing furnace and means for passingsheets in spaced pairs through the pickling tank, washing tank, dryingfurnace, double cooler, cold rolls and annealing furnace.

17. Apparatus for the continuous rolling of sheets from light plates andthe like including a heating furnace, a series of hot mills, a cooler,means for passing the material tl'll'0llgl the furnacemills, and cools?1in ack 0 opening an se )arating'mec aism a l ransfer table, tandeln coldrolls and a double annealing furnace communicating withzthe transfertable, a double pickling tank, a double washing tank, a doubledr ingfurnace, a double cooler, tandem cold ro ls,a double annealing furnace,and means ,jor passing sheets in spaced pickling tank, washing tandrying furnace, double cooler, cold rolls and annealing furonce. u

18. Apparatus for the continuous and simultaneous,selective rollingofone pass cold rolled and annealed sheets and pickled cold rolled andannealed sheets from light plat/es prairs through the and the like.includinga, heating furnacaa series of hot mills, a cooler, meansfor-,passin the material throu h the furnace, nulls a cooler inpacks,-pa opening andseparating mechanism,a double picklingtank, adouble washing tank, a, double drying furnace, a

double cooler, tandem cold roll s',-a double-an nealing furnace,. a.second tandem cold rolls, levelin rolls, conveying means for plassinsheets in spaced pairs'continuously t roug the picklingtank, washingtank, drying furnace, double cooler, cold rolls, annealing furnace,secondcold rolls and levelin rolls, and means for selectively removingan tcollecting sheets from theconveying means before passing through thesecond coldrolls:

19. Ap aratus for the continuous mum of sheets rom lightplates and thelike inclu ing a heatin furnace, a seriesof hot mills, a cooler, a pacleveler, means for passingthe material through the furnace, mills coolerand pack lcveler in packs, pack openmg and separating mechanism, adouble pickling tank, a double washing tank, a double drying, furnace, adouble cooler, tandem cold rolls, a

double annealing furnace and means; for passing sheets in spaced pairsthroughthe picklin tank, washingtank, drying furnace, dou 1e cooler,cold rolls and annealing fur, nace.

20. Apparatus for the continuous and--si-* a double continuous annealingfurnace, aux

iliary tandem cold rolls and an auxiliary don.- ble continuous annealingfurnace conveying means for passin sheets ins acedpairscontinuouslythrou the pickling tank, cold rolls and annea mg furnace, auxiliaconveying means for (passing sheets through the auxiliary rolls an auxiiary annealing furnace, and means forselectively transferring sheetsfrom thefirstsaid conve ing'means to the auxilia conveying meansefore'passing into the pic ling tank.

21. Apparatus for the continuous and simultaneous selective rolling ofone pass cold ion j-lio rolled and annealed sheets and full finishedcold rolled sheets from li ht plates an'dthe' like including a-heatingurnace, a" seriesof hot mills, means for assing material through thefurnace and mills in packs, pack opening and separating mechanism, adouble continuous pickling tank, tandem cold rolls, a double continuousannealing furnaoe,.a second tandem cold rolls,-auxihary tandem coldrolls and an auxiliary double continuous annealin furnace, conveyingmeans for passing sets in v spaced pairs continuously through thepickling tank, cold rolls, anneal have hereunto subscribed my ingfurnace, and second cold rolls, auxiliary conveying means for passingsheets throughthe auxiliary rolls and auxiliary annealing furnace, andmeans for selectively transferring sheets from the first said conveyingmeans to the auxiliary conveying means before passing into the picklingtank.

22.cApparatus for the continuous and simultaneous selective rolling ofone pass cold rolledandannealedsheets,p1ckled cold rolled and annealedsheets and full finished cold rolled sheets from li ht plates andthe'like including a heating urnace, a series of hot mills, means forpassing material through the furnace and mills in packs, pack openingand separating mechanism, a double continuous pickling tank, tandem coldrolls, a double continuous annealing furnace, a second tandem coldrolls, level ing rolls, auxiliary tandem cold rolls and an auxiliarydouble continuous annealing furnace, conveying means for passing sheetsin spaced pairs continuously through the pickling tank, cold rolls,annealing furnace, second cold rolls, and levelling rolls, auxiliaryconveying means for passing sheets through the auxiliary rolls andauxiliary annealing furnace, means for selectively transferring sheetsfrom the first said conveying means to the auxiliary conveying meansbefore passing into the pick link tank, and means for selectivelyremoving and collecting the sheets from the first said conveying meansbefore passing through the second cold rolls.

In testimony that I claim the above, .I

name.

WILLIAM M. BLECKER.

